Machine for inserting fastenings



Aug. 19 1924. 1,505,138

2 J. GOULDBOURN MACHINE .FOR INSERI'ING FASTENINGS Filed June 18, 1920 3Sheets-Sheet. 1

Aug. 19 1924. 1,505,138

J. GOULDBOURN I MACHINE FOR INSERTING FASTENINGS Filed June 8, 1920 3Sheets-Sheet 2 Aug. 19 1924.

1,505,138 J. GOULDBOURN MACH 11GB FOR INSERTING FASTENINGS Filed Juhe'18. 1920 3 'shee'ts Sheet 5' eba 796 I48 I82 v INVENTOR Patented Aug;19, 1924.

UNITED STATES PATENT orricia. I

JOSEPH GOULDBOUBVN, O'F LEICESTER, ENGLAND, ASSIGNOR T0 UNITED SHOEMACHIN- ERY CORPORATION, OF PATTERSON, JERSEY, A CORPORATION OF NEVJJERSEY.

MACHINE FOR INSERTING FASTENINGS.

Application filed. June 13, 192

To all whom it may concern:

be it known that I, JOSEPH GoULDnoURN, a subject of the King of England,and resident -of Leicester, Leicestershire, England, have inventedcertain Improvements in Machines for Inserting Fastenings, of which thefollowing description, in connection with the accompanying drawings, isa specification, like reference characters on the drawings indicatinglike parts in the several figures.

This invention relates to machines for inserting fastenings. By way ofillustration, the invention is herein shown as embodied in a machine forinserting screw threaded fastenings in the soles of boots and shoes, ofthe type disclosed in United States Letters Patent No. 490,621, grantedJan. 24:, 1893, on an application of Louis Goddu.

In the use of such machines on some kinds of work, it is required thatfastenings shall be spaced from each other by distances greater thanthose obtainable by machines constructed as in said Letters Patent. Insuch cases, the operator was required to advance the work manuallybetween successive fastening locations, thus increasing thelaliloriousness of the insertion of the fastenings and considerablyreducing the output of the machine.

In order to obviate these disadvantages,

mechanism of the character shown and de scribed in Letters Patent No.1,26i,188, granted April 30, 1918 to A. E. Jerram and J. Gouldbourn wasdevised, by the use of which the machine may, at the will of theoperator, readily be rendered capable of inserting fastenings at widerspacings than those provided for by the normal range of feed of the workby the machine. \Vhen such mechanism is incorporated in the machinespacings of the fastenings outside the normal. range of the machine maybe obtained by suspending automatically the operation of the fasteninginserting mechanism once between each two fastening insertions, so thatas long as extra wide spacing is desired, the work feeding mechanismwill impart to the work two work feeding movements between every twofastening inserting operations, thereby doubling the spacing range ofthe machine.

It is desirable, in operating on certain Serial No. 389,869.

classes of work, that the spacings of the vtastenings shall vary indifferent parts of a single piece. For example, in the manufacture ofcertain classes of shoes, the sole attaching nails may be inserted inthe forepart of a shoe at considerably greater distances apart than inthe shank without detracting materially from the strength or durabilityof the shoe. In such cases, equal spacing of the nails throughout wouldinvolve either a waste of fastening material and reduced output of themachine by reason of the insertion of an unnecessarily large number ofnails in the forepart or a substantial weakening of the shoe due to thelack of a sufficient number of nails in the shank.

hen mechanism of the kind shown in Letters Patent, No. 1.264,,188, isemployed to obtain extra wide spacings of fastenings in a portion of apiece of work, the output of the machine is necessarily restricted,since a plurality of work feeding operations is re quired to advance thework between successive fastening locations. Moreover, it is frequentlydesirable that the ratio between the shorter and longer spacings shallbe other than the proportion of one to two.

It is an object of the invention to provide novel mechanism adapted foruse in a machine for inserting fastenings to enable the operator duringoperation of the machine on a piece of work to vary the normal feed ofthe work from one range to another, so to cause fastenings to beinserted in. the work at greater or less distances apart. Inasmuch aschange to the wider spacings under the control of the mechanism iseffected by varying the normal feed bf the work, such change does notaffect the rate of insertion of the fastenings. Consequently, the outputof the machine under such conditions of operation is greater than whenthe extent of feeding movement of the work between successive fasteninginserting operations is increased by suspending the op eration of thefastening inserting mechanism, thereby multiplying the range of the workfeeding movement. In the illustrated construction, the ranges of feedingmove ment are determined by stops, both of which are adjustable toenable the extent of both the smaller and the larger ranges offeedconstruction, i

inginserting operations,

ing movement and the ratio between the respective ranges of feedingmovement to be varied as desired.

A further feature of the invention resides in novel operating means fora. work feeding device comprising an element for coupling togethercertain of its members, one of which is mounted for swinging movement onthe frame of the machine, and means acting on the element at the axis ofswing of the member to change the point of connection of the members inorder to vary the feed of the work. In consequence of this swingingmovement of the member does not move the element relatively to themember or affect the operative connection between the element and itsactuating devices.

It is a further object of the invention to provide means for controllingthe feed of the Work which, in addition to the above mentioned and otheradvantages, will possess all the advantages attendant npon the mechanismshown in Letters Patent, No. 1,264,188, particularly as regards adaptinga fastening insertingmachine to deal with spacings in excess of thenormal range of spacings of the machine. Accordingly, the inventionembodies mechanism for multiplying integrally the range of feedingmovcment of the work between successive fastendistinct from themechanism referred to above for varying the feed of the work in adifferent ratio. The invention, in one of its aspects, is furthercharacterized by the provision of a common actuator for thesemechanisms. Preferably, and as shown, the actuator is arranged forcontrol by the operator through the agency of a knee lever and hasassociated with it means for selectively connecting it to the respectivemechanisms.

Other objects and features of the present invention will be apparentfrom the following detailed description of a machine of the typedescribed having the present invention incorporated therein. It is to beunderstood, however, that the invention is not intended tobe limited touse in connection with machines of this type, since the applicability ofthe invention to fastening inserting machines of other types isrecognized.

In the drawings:

Fig. 1 is a side elevation of a machine for inserting screw threadedfastenings embodying mechanism according to the invention:

v Fig. 2 is a detail showing the means for periodically suspendingtheinsertion of fat tenings in operative position;

Fig. 3 is a view in front elevation, partly in section, showing themeans for varying the normal range of feed of the work;

Fig. 4 is a View in elevation of the devices for controlling the feed ofthe work;

Fig. 5 is a view in Fig. 4.

The machine has a base carrying a column 2 which supports a head 4having mounted therein a vertically disposed spindle 6 which carries thescrew-threaded wire from which the fastenings are forn'ied. The spindle(i is continuously rotated by a belt passing over a pulley 8 on theupper end of the spindle and over idlers 10 to a driving pulley (notshown) in the base of the machine, arranged to be clutched to acontinuously running pulley operated from a source of power. The spindle6 is provided with a worm which engages worm gears (Fig. 1) upon theforward ends of parallel shafts, one of which is indicated at 22, thisshaft 22 carrying the various cams for effecting the wire feeding, wiresevering, work feeding, and automatic horn depressing movements. Thesecams are each formed to cause two operations of the parts operatedthereby during each complete revolution of the cam shaft 22.

The wire is fed down 'ardly, through the spindle 6 by a wire feeding andinserting sleeve 24 surrounding the spindle t3 and slidably mounted inguideways in the machine f 'anie, the lower end of said sleeve beingprovided with wire gripping members 26 which operate ii'itermittently toseize the wire as the sleeve is moved downwardly. The sleeve 24 isreciprocated in the machine frame to feed successive lengths of wire andinsert them in the work by a wire feed lever 28 (Fig. 3) pivoted at 30to the machine frame and having two forwardly projecting arms 31 eachcarrying a segmental gear 32, the gears 82 engaging respectively racks34 formed on a yoke attached to the upper end of the sleeve 24. Anupwardly extending arm 36 (Fig. 3) of the lever 28 carries a cam roll 38operatively engaged by a wire feeding edge cam l0 on the cam shaft- 22.The wire feed lever 28 is normally held in position to be operated bythe cam 40 to move the wire feeding sleeve 24 downwardly by acomparatively strong spring (not shown) the lower part of which bearsagainst a part of the lever 28.

After a proper length of wire has been inserted in the work, the wire issevered by knives mounted in the lower ends of two carrying arms 4.1 and4-3 both fulcrun'icd on a shaft 47 mounted in the machine frame. 'ilheknife carrying arms or holders 41 and L3 carry gears (not shown) whichmesh with co-operating gears on the forward end of a shaft "t9 Fig. 1).Upon rocking movement of the shaft 49. the holders 41 and 4-3 arereci1nocatcd toward and from each other to cause the cutting edges ofthe liniv s to sever successive lengths of wire in timed relation to theopt-ration of the wire feeding mechanism. The shaft -19 is oscillatedthrough connections to a cam. wheel 50 proin plan of the parts seenvided with two outstanding toes, one of which is shown at 51, adapted tooperate intermittently a lever 52 operatively connected to the shaft 49.

In the use of the machine, the shoe to be operated upon is mounted upona horn 54 and clamped between the horn and an abutment indicated at 55.In order that each wire nail inserted in the work may corre spond to thethickness of the work at the fastening location, the extent of feedingmovement imparted to the wire feed lever 28 by the wire feeding cam isautomatically varied. This is effected by providing the horn 54 with alaterally extending arm (not shown) to the outer end of which isattached a measuring rod or leg 56 (Fig. projecting upwardly through aguide. in the machine frame and adapted upon upward movement of said rodto engage and move upwardly a co-operating rod 58, the lower end ofwhich is in line with, but normally spaced from, the upper end of therod 56. The rod 58 has its upper end pivotally secured to the end of arearwardly extending arm :19 of the wire feed lever 28. VVhenever thehorn is moved upwardly into work clamping position, the measuring rod 56is correspondingly moved to engage and move the co-operating rod 58,whereupon the wire feed lever 28 is adjusted inrespectto its operatingcam 40 according to the thickness of the work.

Each time after the wire has been inserted in the work and a nail cutoff, the work is automatically fed by a feed wheel '60,

geared to the outer end of a shaft 62. The opposite end of the shaft 62carries loosely a toothed sleeve 64 adapted to be oscillated by a rack66 (Fig. on the lower end of one arm of a two-armed lever 68. The otherarm 70 of this lever "is adjus'tably connected to a lever 72, the upperarm of which lever carries a cam roll 74 traveling in a cam track in thecam 40. A pawl 76 on the sleeve 64 engages a ratchet 78 on the shaft 62and operatesto rotate the shaft 62 when the sleeve 64 is oscillated..Means (not shown) is provided to prevent backward or reverse rotationof the feed wheel when the lever 68 is being returned to normal positionunder theinfluenceof a spring-pressed plunger (not shown).

The parts thus far described conveniently may be, and, as shown, are,constructed sub stantially as described in the aboveinentioned LettersPatent, No. 490,621.

The horn 54 is automatically depressed to permit the work to be fedby-mechanism'ineluding a rod 80'arranged to slide vertically on thecolumn 2 of the machine. The rod 80 is raised to depress the horn by arod 82 having attached to it a carrier 84 provided with a toothed plate86 engaging-ratchet teeth on the upper end of the rod 80. The

rod 82 is operated by a lever 88 fulcrumed on the machine frame andhaving a cam rollriding in a groove in the cam wheel 50.

In the illustrated machine, the operation of the fastening insertingmechanism is suspended by stopping the operation of the wire feeding andwire cutting mechanisms and locking the horn in lowered position,substantially as described in Letters Patent No. 1,264,188 withreference toLetters Patent No. 691,354, granted Jan. 21, 1902, on anapplication of Louis A. Casgrain. The mechanism for suspending theoperation of the fastening inserting mechanism comprises a tread le (notshown) connected by atreadle rod 90 (Fig. 3) to a lever 92 pivoted onthe machine frame and carrying an upstanding spring blade 94 whichengages a latch 96 carried by a lever (not shown) having a cam rolltraveling in a cam track on the rear side of the cam 40 whereby the saidlever and the latch 96 are continuously reciprocated. The latch 96 isprovided with ears or lugs adapted upon up ward movement of the latch toengage corresponding ears or lugs on a switch member 98, fulcrumed onthe machine frame. A bar 100 connects the switch member 98 with a stopblock 102 adapted upon movement of the bar 100 to the left to bepositioned under a collar 104 on the rod 58 and thus to render thefastening inserting mechanism inoperative.

Upon movement of the 'treadle one way 'or the other, the latch 96 isswung correspondingly through the lever 92 and spring blade 94,depression of the treadle moving the lever 92 in a-direction to allowthe latch to turn the switch member 98 into position to restoreoperativeconnection between the wire feeding and cutting mechanisms and theiroperating cams, and return movement of the treadle to its normallyraised position operating reversely through the lever 92 and springblade 94 to force the switch member-98 into position to stop theoperation of these mechanisms.

In the illustrated machine, as in the machine of said Letters Patent No.490,621, the operating cam 40 for the wire feed mechanism, like the cam50 for operating the wire cutting mechanism, is a double throw cam soconstructed that during every revolution of the cam shaft 22 twooperative movements of the wire feeding mechanism are efiected. Means isprovided for automatically periodlcally swinging the lever 92 downwardlyonce an every revolution of the cam shaft 22, thus throwing over thelatch 96 and setting the switch 98 to suspend the operation of the wirefeeding mechanism once in every revolution of the cam shaft so that,when extra wide spacing is desired,

every alternate wire feeding movement will be omitted automatically and,instead of feeding and inserting two fastenings during each revolutionof the cam shaft, the machine will insert one fastening only during eachrevolution of the cam shaft.

Inasmuch as the described means for periodically suspending theoperation of the wire feeding mechanism is independent of, and does notinterfere with, the operation of the work feeding mechanism, it will beseen that, whenever the said means is operative, the work will haveimparted to it two feeding steps or movements between eaehtwo fasteninginserting operations, thereby multiplying in the ratio of one to two thespacing capacity of the machine. As shown, in order to permit the lever92 to 'be swung downwardly independently of thetreadle rod- 90 thetreadle rod has a pin and slot connection 106, 108 with a hollow rod110, the upper end of which has a ball and socket connection .112 withthe lever 92, and a spring 114'is seated in the bore of the rod 110. IThe means for thus automatically and periodically swinging the lever 92to effect alternate suspensions of the operation of the wire feedingmechanism comprises a double-armed lever 116 pivot-ed on the machineframe on an extension of the shaft which carries the wire feed arm 31.The lever 116 carries on its, shorter arm a roll adapted to be engagedby an edge cam piece fitted on the wire feed operating cam and operatingto swing the lever 116 once in every revolution of the cam shaft 22,.allas clearly exhibited in Letters Patent, No. 1,264,188;

The other and longer arm of the double-armed lever 116'is pivotallyconnected to one end of. a rod or plunger 124, the other end of which isarranged to be received in av recess 126 (Fig. 1) at one side of thelever 92. A spring 128 (Fig. 1) connected at one end to the machineframe and at the other end to the rod 124 acts both to force the rod 124laterallyin line with. the recess 126 and also in the direction tomaintain the roll on the lever 116 in contact with the cam 40. Thespring 114 operates to restore the lever 92 to normal position after ithas beenmoved by the rod 124. Located in supports in-the machine frameat one side of the rod 124 is a rotatable shaft indicated at 129 (Fig.2)

having an offset portion 130 so located that rotation of the shaft 129to the right (Fig. 2) displaces the rod 124 laterally against its spring128 out of line with the recess 126 so that, the rod 124 :in itssubsequent reciprocations does not enter the recess 126.

In accordance with a feature of the invention, means is provided forfacilitating the adjustment of the normal range of work feed of themachine. It frequently happens that the normal range of feeding movement[of theworkis desired to be'varied during .operatlon'on a smglePIBCGOfWOIk, as when,

in the manufacture of certain classes of shoes, it is required that thesole attaching fastenings be inserted at a less distance apart in theshank portion of the shoe than in the forepart. In such cases, the useof the mechanism hereinbefore described to obtain wider spacing of thefastenings in the forepart of the shoe may not be entirely satisfactoryin that it may be desired that the ratio of the spacing of thefastenings in the shank and forepart respectively shall be other thanone to two. Moreover, when such mechanism is employed, two separate workfeed ing operations are performed between suecessive fastening insertingoperations, thus retarding the insertion of the fastenings and reducingthe output of the machine. Accordingly, the illustrated machine isprovided with mechanism whereby the normal range of feed of the work maybe varied at the will of the operator during the operation of themachine on a piece of work and in a ratio different from that obtainedby suspending the operation of the fastening inserting mechanism.Preferably, also, the machine embodies improved means for controllingthe devices by which the operation of the fastening inserting mechanismis suspended when it is desired to insert fastenings at distances apartoutside the normal range of feed of the machine.

As shown, a bracket 132 is bolted on the column 2 of the machine atabout the height of the operators knee, and is formed with twohorizontal axially-aligned and spacedapartbearings 134 and 136 in whichare rotatably mounted sleeves 138 and 140. The sleeves 138 and 140 haveV-shaped notches 141 and 142 respectively out in their adjacent ends,and at their opposite ends they are provided with laterally projectingarms 143 and 144 respectively. The arm 143, near the front of themachine, has a ballend which engages a slot 146 in an arm of a two-armedlever 148 pivoted on the bracket 132 and having its other arm 150extending towards the rear of the machine. The latter arm 150 isconnected by a rod 152 to -a lever 154 (Fig. 3) pivoted on a shaft 156mountedin a laterally ofi'set portion 158 of t-he'shaft 160 on which thelever 72 is fulcrumed. The lever 154 has formed on it a gear segment 162meshing with a rack 164 slidably mounted in a plate 166 bolted to andconstituting a part of the cam-actuated lever 7 2. The point at whichthe gear segment 162 and rack 164 mesh is coincident with the center ofthe pivot-shaft 160 of the cam-actuated lever 72 so that swingingmovement of the lever about its ivot does not move the rack 164 relativey to the lever or cause the teeth of the se ment 162 and rack 164 topart company. l ivoted on the rack164 is a block 170 which engages aslot 172 in the upper arm of the feed i shaft 129.

lever 68. The arrangement is such that when the rod 152 is movedupwardly the block 170 is moved nearer .to the center of the pivot shaft47 of the feed lever 68 and away from the center of the pivot-shaft 160of the cam actuated lever 72, with the result that the range of feedingmovement of the work is increased.

Thearm 143 on the sleeve 138 has an upwardly extending lug 178 againstwhich bears a spring-plunger 180, mounted in a boss on the bracket 132.The arm 144 on the sleeve 140 in the rear bearing136, is connected by arod 182 to an arm 188 on the The arm 144 ,alsohas an upwardly extendinglug 184 engaged by a spring-plunger 186 mounted in a boss on the bracket132, which returns the arm 144, after it' has been actuated, intoposition against a stop (not shown) formed on the bracket 132. Passingthrough the two sleeves 138 and 140 is a shaft 188 which has pinned toit two collars 190 and 192, the inner faces of which bear against thearms 143 and 144 and hold .them in position; against the ends of thebearings 134 and 136, thus preventing the sleeves from moving endwise inthe bearings.

The shaft 188 has fixed to it at its forward end a knee-lever 194 bywhich the shaftmay be oscillated. Slidingly mounted on the shaftbetweenthe inner ends of the sleeves 138 and 140 is a member 196 havingV-shaped tongues 198 at each end adapted selectively to enter theV-shaped notches 141 and 142 in the sleeves 138 and 140 respec tively.The member 196 is keyed at 200 to the shaft 188 to prevent its rotationon the shaft but so as to allow it to slide along the shaft. Ahand-piece 202 projects upwardly from the member 196 for manipulation bythe operator to move it along the shaft 188 to engage the tongues 198with the notches in the sleeves, and a springplunger 204-mounted in themember enters one or the other of two recesses 206 in the shaft 188 toposition themember when the tongues 198 are in engagement with thenotches.

The arm 150 of the lever 148 at its rear end moves in a path adjacent toand in substantial parallelism with a vertical face 208 formed on thebracket 132 and provided with openings to receive pins 210 which limitthe up and down movements of the lever 148 and thereby determine the normal ranges of feed of the work. The openings are spaced to producedifferent amounts ofwork-feed. As shown, the lowest opening in the facecorresponds to of feed movement and the highest hole to A or of feedmovement. The Openings 'betweenthe two limits are arranged to give rwork feeding movements varying by sixteenths of an inch. Two series ofopenings are provided in the face, one series for a pin above the leverto limit its upward movement and the other for a pin below the lever to.limit its downward movement.

As an example of the operation of the above-described mechanism forcontrolling the feed of the work, it will be assumed that it is desiredto insert fastenings in the shank portion of a shoe apartand in the forepart of the shoe apart. The member 196 will be moved along the shaft 188until the tongue 198 at the front end of the member 196 engages thenotch 141 in the sleeve 188, and a pin will be inserted inthe lower holein the face 208 which corresponds to of feed movement, a pin being alsoplaced in the upper hole in the. face 208 which corresponds to of feedmovement. When inserting fastenings in the shank portion of the shoe,the knee-lever 194 will not be actuated, and the spring-plunger 180 willhold the arm 150 against the lower pin, in consequence of whichfastenings willbe inserted apart. hen the forepart of the shoe isreached, the knee-lever 194 will be actuated, and the arm 150 held upagainst the other pin, so that fastenings will be inserted apart. henthe shank is again reached, the knee-lever 194 will be released, and thearm 150 will be returned into engagement with the lower pin, after whichfastenings will again be inserted apart. When it is desired to insertfastenings at a greater distance apart than that which comes within thenormal range of feed of the machine; for example, when it and spacingsare used as the short and long spacings respectively, the member 196will be moved along the shaft 188 until the tongue 198 on the member196'engages the notch 142 in the sleeve 140. The knee-lever 194 will notbe actuated when inserting fastenings along the shank, but when theforepart is reached the knee-lever 194 will be actuated to lower the rod182 and,thereby, to turn the shaft 129 from the position shown in Fig. 1to the position shown in Fig. 2', so as to cause the operation of thefastening inserting mechanism tobe periodieally suspended, so that thefastenings are inserted twice as far apart as before, i. e., in the caseassumed. The knee-lever 194'is released when the shank of the shoe isagain reached, allowing'the rod 182 to be returned by the spring-plunger186 and rendering the rod 124 inoperative on the lever 92.

This controlling mechanism is convenient for operation in the course ofoperation on a piece of work, i. e., while the operator is handling theworkpiece, and is further so devised as to be capable of operationwithout interrupting the operation of the machine in any way, that is,it is capable of operation while the work feed, wire feed and wirecutting mechanisms continue in operation.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is In a machine of theclass described, means'for inserting screw-threaded fasteningscomprising a rotary spindle for screwing-the fastenings into the work,means for feeding the work past the spindle to cause a row of fasteningsto be inserted in the work, means adapted to be actuated by the operatorduring operation of the machine on "a piece of work to vary the normalfeed "of the work from one range to another, and means carried by themachine for determining the ranges of feeding movement of the work.

2. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening insert ing mechanism, alever for cont-rolling the extent of feeding movement of the feedingmeans, a stop for locating the lever to determine arange of feedingmovement of the feeding means, a sleeve connected to the lever, a springoperable on the sleeve to maintain the lever in operative relation tothe stop, a second stop, a shaft rotatably mounted in the sleeve, meansfor connecting the sleeve and shaft for common rotation against theopposition of the spring, and moans for'rotating the shaft to move theflever'into operative relation to the secondmentioned stop.

3 3. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening inserting mechanism, alever for controlling the extent of feeding movement of the feedingmeans, a bracket to which the lever is pivoted, a stop disposed forengagement with the lever for locating it to determine a range offeeding movement of the feeding means, a sleeve journaled in the bracketand having an arm connected to the lever, a lug 011 the sleeve, a springpressed plunger mounted in the bracket and operable through said arm tomaintain the lever in operative relation to the stop, a shaft journaledin the sleeve, means for connecting the sleeve and shaft for commonrotation, and means for rotating the shaft to move the lever away fromthe stop, thereby to determine a different range of feeding movement ofthe feeding means.

4. In a machine of the class described, a workfeeding device andoperating connections for the device comprising members, oneof which ismounted for swinging movement, means for coupling the swinging member tothe other member including an element movable tochange the point ofconnection of the members and thereby vary the feed of the work, and agear acting at the axis of swing of the swinging member for moving theelement.

5. I11 a machine of the class described, a work feeding device and meansfor operating the device comprising a pair of swm ing membeis, anelement for coupling the members together, the element being movable tochange the point of connection of the members and thereby vary the feedof the work, and gearing acting at the axis of swing of one of themembers for moving the element.

6. In a machine of the class described, a work feeding device and meansfor operating the device comprising members, one of which is mounted forswingin movement, connections between the mem ers including a rackmovable slidably in the swinging member to change the point ofconnection of the members and thereby vary the feed of the work, and agear for moving the rack.

7. In a machine of the class described, a frame, a work feeding device,means for operating the device comprising members, one of which ismounted for swinging movement on the frame, connections between themembers including a rack movable slidably in the swinging member to varythe feed of the work, and a gear journaled on the machine frame anddisposed for engagement with the rack so that swinging movement of themember does not change the position of the rack in the member or causedisengagement of the teeth of the gear and rack.

8. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening inserting mechanismintermediate between the insertion of the fastenings, mechanism formultiplying integrally the range of feeding movement of the work betweensucces sive fastening inserting operations, and other mechanismconstructed for actuation by the operator during operation of themachine on a! piece of work to vary the feed of the work in a differentratio.

9. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening inserting mechanismintermediate between the insertion of the fastening, mechanism forvarying the feed of the work during operation of the machine on a pieceof work between two determinate ranges of feeding movement of variablerelation, and other mechanism for multiplying integrally the range offeeding movement of the work between successive fastening insertingoperations.

10. In a machine of the class described. fastening inserting mechanism,means for feeding the work past the fastening inserting mechanismintermediate between the insertion of the fastenings, mechanism forvarying the normal range of feed of the work, other mechanism formultiplying integrally the range of the feeding movement of the workbetween successive fastening inserting operations, and a commonoperatorcontrolled actuator for controlling the two mechanisms.

11. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening inserting mechanism,intermediate between the insertion of the fastenings, mechanism forvarying the feed of the work between two ranges of feeding movement ofvariable relation, other mechanism for multiplying integrally the rangeof the feeding movement of the work between successive fasteninginserting operations, a common actuator for controlling the twomechanism, and means for connecting the actuator selectively to themechanisms.

12. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening inserting mechanism,intermediate between the insertion of the fastenings, controlling meansfor the feeding means operable to cause the work to be fed through onepredetermined range of movement, an actuator, and means constructed formovement by the actuator to cause the work to be fed through either oftwo other predetermined and unequal ranges of movement betweensuccessive fastening inserting operations.

13. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening inserting mechanismintermediate between the insertion of the fastenings, a movable memberfor controlling the range of movement of the work by the feeding means,stops for locating the member to determine unequal ranges of feedingmovement of the work, means for normally maintaining the member inoperative relation to one of the stops, an actuator for moving themember into operative relation to the other of the stops to change therange of feeding movement, and means constructed for movement by theactuator tocause the work to be fed between successive fasteninginsertingoperations through a range of movement other than thatdetermined by either of the stops.

14. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening inserting mechanismintermediate between the insertion of the fastenings, means forsuspending periodically the operation of the fastening insertingmechanism during the operation of the machine constructed and arrangedto increase the amount of work feeding movement of the work feedingmechanism between successive fastening inserting operations, mechanismfor varying the normal feed of the work, and common controlling meansfor the suspending means and said mechanism.

15. In a machine of the class described, a frame, fastening insertingmechanism, means for feeding the work past the fastening insertingmechanism intermediate between the insertion of the fastenings, meansfor suspending periodically the operation of the fastening insertingmechanism during the operation of the machine constructed and arrangedto increase the amount of work feeding movement of the work feedingmechanism between successive fastening inserting operations, mechanismfor varying the normal feed of the work, a plurality of sleevesjournaled in the frame, means operatively connected with one of thesleeves for controlling the suspending means, means operativelyconnected with the other sleeve for controlling the mechanism, a shaftextending through the sleeves, and a member mounted on the shaft forselective engagement with the sleeves.

16. In a machine of the class described, fastening inserting mechanism,means for feeding the work past the fastening inserting mechanismintermediate between the insertion of the fastenings, means forsuspending periodically the operation of the fastening insertingmechanism during the operation of the machine constructed and arrangedto increase the amount of work feeding movement of the work feedingmechanism between successive fastening inserting operations, means forrendering the suspending means normally inoperative, a movable memberfor varying th normal feed of the work, stops for locating said memberto determine unequal ranges of feeding movement of the work, means fornormally maintaining the member in operative relation with one of thestops, an actuator, and a member movably mounted on the actuator forselectively moving the member into operative relation with the otherstop, and rendering the suspending means operative.

In testimony whereof I have signed my name to this specification.

JOSEPH GOULDBOURN.

